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Communication

Up-Regulation of microRNA* Strands by Their Target Transcripts

1
Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, Korea
2
Brain Science and Engineering Institute, Kyungpook National University, Daegu 700-412, Korea
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2013, 14(7), 13231-13240; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms140713231
Received: 27 April 2013 / Revised: 29 May 2013 / Accepted: 17 June 2013 / Published: 26 June 2013
(This article belongs to the Special Issue Regulation by non-coding RNAs 2013)
During microRNA (miRNA) biogenesis, one strand of a 21–23 nucleotide RNA duplex is preferentially selected for entry into an RNA-induced silencing complex (RISC). The other strand, known as the miRNA* species, is typically thought to be degraded. Previous studies have provided miRNA* selection models, but it remains unclear how the dominance of one arm arises during the biogenesis of miRNA. Using miRNA sponge-like methods, we cloned four tandem target sequences (artificial target) of miR-7b* and then measured miR-7b* expression levels after transfection of the artificial target. miR-7b* levels were found to significantly increase after transfection of the artificial target. We postulate that the abundance of target transcripts drives miRNA arm selection. View Full-Text
Keywords: microRNA (miRNA); pre-miRNA; RISC; Drosha; Dicer; Argonaute (Ago) microRNA (miRNA); pre-miRNA; RISC; Drosha; Dicer; Argonaute (Ago)
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MDPI and ACS Style

Kang, S.-M.; Choi, J.-W.; Hong, S.-H.; Lee, H.-J. Up-Regulation of microRNA* Strands by Their Target Transcripts. Int. J. Mol. Sci. 2013, 14, 13231-13240. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms140713231

AMA Style

Kang S-M, Choi J-W, Hong S-H, Lee H-J. Up-Regulation of microRNA* Strands by Their Target Transcripts. International Journal of Molecular Sciences. 2013; 14(7):13231-13240. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms140713231

Chicago/Turabian Style

Kang, Sung-Min, Ji-Woong Choi, Su-Hyung Hong, and Heon-Jin Lee. 2013. "Up-Regulation of microRNA* Strands by Their Target Transcripts" International Journal of Molecular Sciences 14, no. 7: 13231-13240. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms140713231

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